Clara estimates that the length of a hiking trail is 5.75 kilometers. she later learns that its actual length is 6.25 kilometers. what is the percent error in clara's estimate, to the nearest tenth of a percent? a. 7.7% b. 8.0% c. 11.0% d. 11.5% i think it is d. 11.5%, but i am not sure.

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie